{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How are smart contract testing environments established in blockchain?","a":"Set  up the development environment: According to the requirements of the selected framework, install the corresponding development environment. This may include installing Node.js, npm (Node.js package manager), and compilers (such as solc, used for compiling the Solidity smart contract language)."}]}],"pr":"8bf14cc08d257f4292c0fc29c7b5034c11123b4fef657fdf242612ecfb0df816"}